639 multiplied by 21 is 13419

Explanation: Multiplication is repeated addition. So, 639 × 21 means adding 639, 21 times:

Word Problem Style

If you have 21 boxes and each box contains 639 apples, then the total number of apples is 13419.

Quick Facts

• 639 is called the multiplicand.
• 21 is called the multiplier.
• The result, 13419, is called the product.

Multiplication Table for 639

Explore More Multiplications

• 639 × 22
• 639 × 23
• 639 × 24
• 639 × 25
• 639 × 26
• 640 × 21
• 641 × 21
• 642 × 21
• 643 × 21
• 644 × 21