Answer :
I'll write the factors of 840, and then we can see how many there are.
I have no control over how long the list is.
The factors of 840 are . . .
1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 20, 21, 24, 28, 30, 35, 40,
42, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, and 840.
840 actually has 30 factors ! What a number !
I have no control over how long the list is.
The factors of 840 are . . .
1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 20, 21, 24, 28, 30, 35, 40,
42, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, and 840.
840 actually has 30 factors ! What a number !
