Long Multiplication: 420 × 4

Long Multiplication Calculator
Multiplicand (number to be multiplied)
Multiplier (number to multiply by)

What is 420 × 4?

Answer

420 × 4 =
1,680

One partial product: 420 × 4 = 1,680. 4 × 420 gives the same 1,680.

420 × 4 in a column

420
×4
1680

In the column: product 1,680.

Step by step: 420 × 4

  1. Step 1Multiply the multiplicand by the last digit of the multiplier, 4: 420 × 4 = 1,680.
    • 0 × 4 = 0. Write 0.
    • 2 × 4 = 8. Write 8.
    • 4 × 4 = 16. Write 6 and carry 1.
    • No digits are left, so the carried 1 is written in front: the partial product is 1,680.
  2. Product1,680

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Recalculate with different values ↑

Products of 420

MultiplicationProduct
320 × 41,280
330 × 41,320
340 × 41,360
350 × 41,400
360 × 41,440
370 × 41,480
380 × 41,520
390 × 41,560
400 × 41,600
410 × 41,640
420 × 41,680
430 × 41,720
440 × 41,760
450 × 41,800
460 × 41,840
470 × 41,880
480 × 41,920
490 × 41,960
500 × 42,000
510 × 42,040

FAQ

What is 420 × 4?

420 × 4 = 1,680

Is 420 × 4 the same as 4 × 420?

Yes. Multiplication is commutative, so both come to 1,680. Only the working differs: this page multiplies by 4, which gives a single partial product.

How do you check that 420 × 4 = 1,680?

Divide the product back by one of the factors: 1,680 ÷ 4 = 420 exactly, with no remainder. Multiplication and division undo each other, which is what makes this check work.

What are the partial products of 420 × 4?

There is only one: the multiplier 4 has a single digit, so 420 × 4 = 1,680 is written straight under the line, with no addition step.

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