Yes because 155*4 = 620
The GCF is 4.
The least common multiple of 20 and 31 is 620.
The Least Common Multiple (LCM) for 10 20 124 is 620.
Infinite. The first 10 are: 321, 642, 963, 1284, 1605, 1926, 2247, 2568, 2889, 3210 . . .
it was a 4 stroke
0.0016
1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620
1 x 620, 2 x 310, 4 x 155, 5 x 124, 10 x 62, 20 x 31 = 620
1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620
1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620.
620 - without using a calculator !
Each of these factor pairs (multiply the numbers in parentheses) equals 620: (1, 620) (2, 310) (4, 155) (5, 124) (10, 62) (20, 31)