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21 and -10 are co-prime. They only have the factor "1" in common. If you mean what numbers add to -10, whose product is 21, that would be -3 and -7.
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What are two factors of 21 and 10?
If you mean what numbers add to 10, whose product is 21, that would be 3 and 7.
What two numbers are factors of 21 and when added they equal -10?
11
What are two composite numbers that each have prime factors with the sum of 10?
21 and 32
What are two factors of 21 that when added together equal 21?
The factors of 21 are 1, 3, 7 and 21. No two of them add up to 21.
What numbers have an HCF of 1?
An HCF is the product of any common prime factors of two numbers. If two numbers have no common prime factors, then the HCF will be 1. For example, 10 and 21. The prime factors are 2x5 and 3x7. There is nothing in common, and so the HCF of 10 and 21 is 1. Two consecutive numbers will always have the HCF of 1.
If 7x3 equals 21 the 7 and 3 are the of 21?
10
What are the factors of 21 and40?
The factors of 21 are: 1, 3, 7, 21 | The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40
What factors of a number equal 21?
When the "factors" of a number are listed, the list is usually restricted to positive factors. Then there would be no answer to the question, because no group of positive numbers can add up to make zero.
What are two factors of 21 with a difference of 2?
The factors of 21 are 1, 3, 7, and 21. 3 - 1 = 2
Do 21 have only two factors?
If 21 is a factor of a number, then the factors of 21 must also be factors. So 3 and 7
What are common factors of 10 and 21?
Just 1.
What are the factors of 21 and 30?
Factors of 21: 1, 3, 7, 21 Factors of 30: 1, 2, 3, 5, 6, 10, 15, 30
