280
60 less than 345 = 345 - 60 = 285
60 less than 345 is 285.
1 is a triangular and square number, and it is less than 60.
425
It = 763.
No. As a general rule, factors cannot be larger than the numbers they are compared to.
2
53
60
The number could be 61 due 84.
60 x 345 = 20700
53, 59