20 and 40 have 4 and 5 as common factors.
1, 2, 4 1, 5
60 has those factors in common.
There are no numbers that fulfill that request.
They are all factors of 60
1200, 12600 and 12660001200 are three numbers.
3, 5 and 6 are factors of 30
60 and 120
The number 40 is a multiple of both 4 and 5.
Numbers without factors are PRIME Numbers. Taking the first ten numbers. 1,2,3,4,5,6,7,8,9,10. The prime numbers are 2,3,5,7, they have no factors. 4,6,8,9,10. Are not prime numbers as they have factors. 4 has a factor of '2' 6 has factors of '2 & 3'. 8 has factors of' 2 & 4'. or' 2,2,2.' 9 has factors of '3,3', 10 has factors of '2 5.' '1' is unique
Factors are numbers you can multiply together to get another number. 16: 1, 2, 4, 8, 16 16 has 5 factors.
As a product of its prime factors: 2 * 2 * 5 * 5 = 100