Question

the HCF of 42 and 90 is what​

Answer 1

Answer:

Yes! Here is your answer!

Step-by-step explanation:

The prime factorisation of 90 is: 2 x 3 x 3 x 5. The prime factors and multiplicities 42 and 90 have in common are: 2 x 3. 2 x 3 is the gcf of 42 and 90. gcf(42,90) = 6.

Answer 2

Answer:

The common factors of 42 and 90 are 6, 3, 2, 1, intersecting the two sets above. In the intersection factors of 42 ∩ factors of 90 the greatest element is 6. Therefore, the greatest common factor of 42 and 90 is 6.