624 is composite. All positive, whole numbers greater than five and ending in 0, 2, 4, 5, 6 or 8 are composite.
Every even number greater than 2 is composite.
624 = 624/1
624-379 = 245
624 and divide28 = 22.285714285714285
156
Yes, because 624/4 = 156 and 624/8 = 78
It is a factor of 624.
No, but six is a divisor of 624.
624 + 813 = 1437
624
959