1 x 103, 103 x 1 = 103

It is: 3+17 = 20

It is 3 that is a common prime factor to both numbers

DEFINITELY Composite.

Reason ; it is an even number, which means it will divide by '2' , hence it is composite. It is compoed by 2 x 21 = 42 or 3 x 14 = 42 or 6 x 7 = 42

NB ANY EVEN Number, except '2', is composite, there by NOT a PRIME Number.

To be sure, prime numbers are a number which cannot be divisible by every number except for itself and one. Take 5 for an example. There is no possible number which is divisible by itself except for itself and one. So, 5 is a prime number.2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97 are all prime numbers to 100. Let's refresh our mind. Now, 57 has factors of 1, 3, 19, and 57. Let's remove the 57 and 1. Now, 3 and 19 are all the factors of 57.

The two perfect numbers between 1 and 30 are:

6, 28

A factor can or cannot be a prime number

Ex: 2 is the factor of all other even numbers its a prime number

but 9 is a factor of 18 and its not a prime number

A prime is a factor but a factor being a prime number varies

How about the prime number of: 59+7 = 66

1,000,003

The word 'number' comes from Latin word ' numerus' meaning a quatityt.

Various marks on bones/wood etc., are thought to be 'tally marks' from 40,000 years ago.

Our modern number symbols of 1,2,3,4,5,6,7,8,9, are Arabic in origin.

19

NO!!!! Because it ends in '5' . Hence it will divide by '5'.

No, it is divisible by 7 and 13.
91 is not a prime number because it has more than two factors and so therefore it is a composite number

What is the Mix Ratio for MC 70 prime coat Diesel to bitumen?

B eautiful sky above, L aughter in my heart, U nderneath it all, E ternal love shines through.

In the golden years of life, fifty shines bright, With memories made and dreams taking flight. Half a century of wisdom acquired, Celebrating all that makes us inspired.

No, 38 is not a prime number because it is divisible by 1, 2, 19, and 38. A prime number is a number that is only divisible by 1 and itself.

The greatest prime number less than 20 is 19.

Not sure what "then twice" is unless you are wanting to double it, which becomes 38.

CCCVI = 306

In Roman Numerals

M = 1000

D = 500

C = 100

L = 50

X = 10

V = 5

I = 1

The highest value letter always goes to the left. If a given value is repeated then it menas addition.

Hence

'C; is higher value than 'V' or 'I' . ( 100 > 5 > 1)

Since 'C; is repeated as CCC it means 100+ 100 + 100 = 300

V = 5

I = 1

So CCCVI = 300 + 5 + 1 = 306

NB If a lower value is to the left of a higher value, it means subtract .

Hence

VI = 5 + 1 = 6 , but IV = 5 - 1 = 4

It is: 1*269 = 269 which is also a prime number

A prime number is a number that is divisible only by 1 and itself; it has no other factors. A composite number is a number that is divisible by more than 2 numbers. The factors of 77 are 1, 7, 11, and 77. Therefore, 77 is a composite number.

100 = 2 x 2 x 5 x 5 = 2^(2) x 5^(2)

A composite number is a number that has at least 3 factors. (It can be evenly divided by at least 3 number.)

25 has 3 factors: 1, 5, and 25.

396 is a composite number. A prime number has only 2 factors which are 1 and itself. Composite numbers are every other positive integer except 1 and 0. 1 and 0 are neither prime, nor composite.

Prime numbers less than 13 are: 2, 3, 5, 7 and 11