60, 90 and 180
All the prime numbers between 60 and 90 are: 61 67 71 73 79 83 and 89
No. 90 is composite and therefore cannot be a prime factor.
170
The greatest prime factor of 75 and 90 is: 5
The prime factors of 90 are: 2,3,5
The GCF is 1.
The prime factors of 90 are 2,3,3,5.
77 is one possibility.
If A is a factor of 90, the GCF is A. If A is a multiple of 90, the GCF is 90. If A is co-prime with 90, the GCF is 1.
The prime factor of 19 is 19. The prime factors of 90 are 2, 3 and 5.
For 45, 60, 90 the GCF = 15