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## Related Questions

###### Asked in Numbers

### Is 252 an odd or even number?

###### Asked in Math and Arithmetic

### When 80 of a number is added to the number the result is 252?

By 80 of a number, I presume you mean 80%. If so, set up the
equation this way, with x representing the unknown number and .8x
representing 80% of the number: x + ,8x = 252 and rewrite as 1.8x =
252; next step: divide both sides of the equation by 1.8 to find
the value of x so the equation will look like this 1.8x / 1.8 = 252
/ 1,8 and rewrite as x = 140. To prove the solution, substitute 140
for x and solve: 140 + 112 (80% of 140 is 112) = 252

###### Asked in Math and Arithmetic

### Is 72 a hcf of six and LCM of 252?

No. It can be neither.
HCF is Highest Common Factor; a factor of a number is a number
which divides into it with no remainder. Thus all factors are less
than or equal to the number. 72 is greater than 6, therefore it
cannot be a factor of 6, nor the Highest Common Factor of 6 and
another number.
LCM is Lowest Common Multiple; a multiple of a number is that
number times some other number. Thus all multiples are greater than
or equal to the number. 72 is less than 252, therefore it cannot be
a multiple of 252, nor can it be the Lowest Common Multiple of 252
and another number.
However, 6 is a factor of 72, thus 6 could be the HCF of 72 and
another number, eg hcf(30, 72) = 6.
But 252 is not a multiple of 72, so 252 could not be a LCM of 72
and some other number.