Question

HELP GCD OF 45 48 90 AND40

Answer 1

Greatest Common Factor

We found the factors 40,45,48,90 . The biggest common factor number is the GCF number. So the greatest common factor 40,45,48,90 is 1.

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Answer 2

The instructions to find the GCF of 40, 45, 48 and 90 are the next:

1. Decompose all numbers into prime factors

40 2 20 2 10 2 5 5 1

45 3 15 3 5 5 1

48 2 24 2 12 2 6 2 3 3 1

90 2 45 3 15 3 5 5 1